Real-World Evidence of Triplet Therapy in Metastatic Hormone-Sensitive Prostate Cancer : An Austrian Multicenter Study

Copyright © 2024 The Author(s). Published by Elsevier Inc. All rights reserved..

INTRODUCTION: Two randomized trials demonstrated a survival benefit of triplet therapy (androgen deprivation therapy [ADT]) plus androgen receptor pathway inhibitor [ARPI] plus docetaxel) over doublet therapy (ADT plus docetaxel), thus changing treatment strategies in metastatic hormonesensitive prostate cancer (mHSPC).

PATIENTS AND METHODS: We conducted the first real-world analysis comprising 97 mHSPC patients from 16 Austrian medical centers, among them 79.4% of patients received abiraterone and 17.5% darolutamide treatment. Baseline characteristics and clinical parameters during triplet therapy were documented. Mann-Whitney U test for continuous or X²-test for categorical variables was used. Variables on progression were tested using logistic regression analysis and tabulated as hazard ratios (HR), 95% confidence interval (CI).

RESULTS: Of 83.5% patients with synchronous and 16.5% with metachronous disease were included. 83.5% had high-volume disease diagnosed by conventional imaging (48.9%) or PSMA PET-CT (51.1%). While docetaxel and ARPI were administered consistent with pivotal trials, prednisolone, prophylactic gCSF and osteoprotective agents were not applied guideline conform in 32.5%, 37%, and 24.3% of patients, respectively. Importantly, a nonsimultaneous onset of chemotherapy and ARPI, performed in 44.3% of patients, was associated with significantly worse treatment response (P = .015, HR 0.245). Starting ARPI before chemotherapy was associated with significantly higher probability for progression (P = .023, HR 15.781) than vice versa. Strikingly, 15.6% (abiraterone) and 25.5% (darolutamide) low-volume patients as well as 14.4% (abiraterone) and 17.6% (darolutamide) metachronous patients received triplet therapy. Adverse events (AE) occurred in 61.9% with grade 3 to 5 in 15% of patient without age-related differences. All patients achieved a PSA decline of 99% and imaging response was confirmed in 88% of abiraterone and 75% of darolutamide patients.

CONCLUSIONS: Triplet therapy arrived in clinical practice primarily for synchronous high-volume mHSPC. Regardless of selected therapy regimen, treatment is highly effective and tolerable. Preferably therapy should be administered simultaneously, however if not possible, chemotherapy should be started first.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:22

Enthalten in:

Clinical genitourinary cancer - 22(2024), 2 vom: 24. Apr., Seite 458-466.e1

Sprache:

Englisch

Beteiligte Personen:

Kafka, Mona [VerfasserIn]
Giannini, Giulia [VerfasserIn]
Artamonova, Nastasiia [VerfasserIn]
Neuwirt, Hannes [VerfasserIn]
Ofner, Heidemarie [VerfasserIn]
Kramer, Gero [VerfasserIn]
Bauernhofer, Thomas [VerfasserIn]
Luger, Ferdinand [VerfasserIn]
Höfner, Thomas [VerfasserIn]
Loidl, Wolfgang [VerfasserIn]
Griessner, Hubert [VerfasserIn]
Lusuardi, Lukas [VerfasserIn]
Bergmaier, Antonia [VerfasserIn]
Berger, Andreas [VerfasserIn]
Winder, Thomas [VerfasserIn]
Weiss, Sarah [VerfasserIn]
Bauinger, Severin [VerfasserIn]
Krause, Steffen [VerfasserIn]
Drerup, Martin [VerfasserIn]
Heinrich, Elmar [VerfasserIn]
Schneider, Magdalena [VerfasserIn]
Madersbacher, Stephan [VerfasserIn]
Vallet, Sonia [VerfasserIn]
Stoiber, Franz [VerfasserIn]
Laimer, Sarah [VerfasserIn]
Hruby, Stephan [VerfasserIn]
Schachtner, Gert [VerfasserIn]
Nagele, Udo [VerfasserIn]
Lenart, Sebastian [VerfasserIn]
Ponholzer, Anton [VerfasserIn]
Pfuner, Jacob [VerfasserIn]
Wiesinger, Clemens [VerfasserIn]
Kamhuber, Christoph [VerfasserIn]
Müldür, Ecan [VerfasserIn]
Bektic, Jasmin [VerfasserIn]
Horninger, Wolfgang [VerfasserIn]
Heidegger, Isabel [VerfasserIn]

Links:

Volltext

Themen:

15H5577CQD
Abiraterone
Androgen Antagonists
Darolutamide
Docetaxel
Hormones
Journal Article
Multicenter Study
Personalized treatment
Treatment efficacy
Triplet therapy tolerability

Anmerkungen:

Date Completed 11.03.2024

Date Revised 10.04.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.clgc.2023.12.018

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM367577321